I actually had this thought once. Long time ago I was in this industrial workplace accident (don't wear loose fitting clothes near huge spinning things) and to cut to the chase I ended up on the floor bleeding and I'm guessing the shock made it so that I couldn't breathe for around a minute. I can hold my breath for a minute, no problem, but in the moment when you don't know what is happening and you can't breathe and there's no way to just start breathing, that minute felt very very long. I remember thinking "well, this is it, I will die now, but.. I guess it's for the best."
Turns out I had been depressed for a while, and needed some change in my life.